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<FONT color="green">001</FONT>    /*<a name="line.1"></a>
<FONT color="green">002</FONT>     * Licensed to the Apache Software Foundation (ASF) under one or more<a name="line.2"></a>
<FONT color="green">003</FONT>     * contributor license agreements.  See the NOTICE file distributed with<a name="line.3"></a>
<FONT color="green">004</FONT>     * this work for additional information regarding copyright ownership.<a name="line.4"></a>
<FONT color="green">005</FONT>     * The ASF licenses this file to You under the Apache License, Version 2.0<a name="line.5"></a>
<FONT color="green">006</FONT>     * (the "License"); you may not use this file except in compliance with<a name="line.6"></a>
<FONT color="green">007</FONT>     * the License.  You may obtain a copy of the License at<a name="line.7"></a>
<FONT color="green">008</FONT>     * <a name="line.8"></a>
<FONT color="green">009</FONT>     *      http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a>
<FONT color="green">010</FONT>     * <a name="line.10"></a>
<FONT color="green">011</FONT>     * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a>
<FONT color="green">012</FONT>     * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.12"></a>
<FONT color="green">013</FONT>     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a>
<FONT color="green">014</FONT>     * See the License for the specific language governing permissions and<a name="line.14"></a>
<FONT color="green">015</FONT>     * limitations under the License.<a name="line.15"></a>
<FONT color="green">016</FONT>     */<a name="line.16"></a>
<FONT color="green">017</FONT>    <a name="line.17"></a>
<FONT color="green">018</FONT>    package org.apache.commons.lang3.time;<a name="line.18"></a>
<FONT color="green">019</FONT>    <a name="line.19"></a>
<FONT color="green">020</FONT>    /**<a name="line.20"></a>
<FONT color="green">021</FONT>     * &lt;p&gt;<a name="line.21"></a>
<FONT color="green">022</FONT>     * &lt;code&gt;StopWatch&lt;/code&gt; provides a convenient API for timings.<a name="line.22"></a>
<FONT color="green">023</FONT>     * &lt;/p&gt;<a name="line.23"></a>
<FONT color="green">024</FONT>     * <a name="line.24"></a>
<FONT color="green">025</FONT>     * &lt;p&gt;<a name="line.25"></a>
<FONT color="green">026</FONT>     * To start the watch, call {@link #start()}. At this point you can:<a name="line.26"></a>
<FONT color="green">027</FONT>     * &lt;/p&gt;<a name="line.27"></a>
<FONT color="green">028</FONT>     * &lt;ul&gt;<a name="line.28"></a>
<FONT color="green">029</FONT>     * &lt;li&gt;{@link #split()} the watch to get the time whilst the watch continues in the background. {@link #unsplit()} will<a name="line.29"></a>
<FONT color="green">030</FONT>     * remove the effect of the split. At this point, these three options are available again.&lt;/li&gt;<a name="line.30"></a>
<FONT color="green">031</FONT>     * &lt;li&gt;{@link #suspend()} the watch to pause it. {@link #resume()} allows the watch to continue. Any time between the<a name="line.31"></a>
<FONT color="green">032</FONT>     * suspend and resume will not be counted in the total. At this point, these three options are available again.&lt;/li&gt;<a name="line.32"></a>
<FONT color="green">033</FONT>     * &lt;li&gt;{@link #stop()} the watch to complete the timing session.&lt;/li&gt;<a name="line.33"></a>
<FONT color="green">034</FONT>     * &lt;/ul&gt;<a name="line.34"></a>
<FONT color="green">035</FONT>     * <a name="line.35"></a>
<FONT color="green">036</FONT>     * &lt;p&gt;<a name="line.36"></a>
<FONT color="green">037</FONT>     * It is intended that the output methods {@link #toString()} and {@link #getTime()} should only be called after stop,<a name="line.37"></a>
<FONT color="green">038</FONT>     * split or suspend, however a suitable result will be returned at other points.<a name="line.38"></a>
<FONT color="green">039</FONT>     * &lt;/p&gt;<a name="line.39"></a>
<FONT color="green">040</FONT>     * <a name="line.40"></a>
<FONT color="green">041</FONT>     * &lt;p&gt;<a name="line.41"></a>
<FONT color="green">042</FONT>     * NOTE: As from v2.1, the methods protect against inappropriate calls. Thus you cannot now call stop before start,<a name="line.42"></a>
<FONT color="green">043</FONT>     * resume before suspend or unsplit before split.<a name="line.43"></a>
<FONT color="green">044</FONT>     * &lt;/p&gt;<a name="line.44"></a>
<FONT color="green">045</FONT>     * <a name="line.45"></a>
<FONT color="green">046</FONT>     * &lt;p&gt;<a name="line.46"></a>
<FONT color="green">047</FONT>     * 1. split(), suspend(), or stop() cannot be invoked twice&lt;br /&gt;<a name="line.47"></a>
<FONT color="green">048</FONT>     * 2. unsplit() may only be called if the watch has been split()&lt;br /&gt;<a name="line.48"></a>
<FONT color="green">049</FONT>     * 3. resume() may only be called if the watch has been suspend()&lt;br /&gt;<a name="line.49"></a>
<FONT color="green">050</FONT>     * 4. start() cannot be called twice without calling reset()<a name="line.50"></a>
<FONT color="green">051</FONT>     * &lt;/p&gt;<a name="line.51"></a>
<FONT color="green">052</FONT>     * <a name="line.52"></a>
<FONT color="green">053</FONT>     * &lt;p&gt;This class is not thread-safe&lt;/p&gt;<a name="line.53"></a>
<FONT color="green">054</FONT>     * <a name="line.54"></a>
<FONT color="green">055</FONT>     * @since 2.0<a name="line.55"></a>
<FONT color="green">056</FONT>     * @version $Id: StopWatch.java 1199894 2011-11-09 17:53:59Z ggregory $<a name="line.56"></a>
<FONT color="green">057</FONT>     */<a name="line.57"></a>
<FONT color="green">058</FONT>    public class StopWatch {<a name="line.58"></a>
<FONT color="green">059</FONT>    <a name="line.59"></a>
<FONT color="green">060</FONT>        private static final long NANO_2_MILLIS = 1000000L;<a name="line.60"></a>
<FONT color="green">061</FONT>    <a name="line.61"></a>
<FONT color="green">062</FONT>        // running states<a name="line.62"></a>
<FONT color="green">063</FONT>        private static final int STATE_UNSTARTED = 0;<a name="line.63"></a>
<FONT color="green">064</FONT>    <a name="line.64"></a>
<FONT color="green">065</FONT>        private static final int STATE_RUNNING = 1;<a name="line.65"></a>
<FONT color="green">066</FONT>    <a name="line.66"></a>
<FONT color="green">067</FONT>        private static final int STATE_STOPPED = 2;<a name="line.67"></a>
<FONT color="green">068</FONT>    <a name="line.68"></a>
<FONT color="green">069</FONT>        private static final int STATE_SUSPENDED = 3;<a name="line.69"></a>
<FONT color="green">070</FONT>    <a name="line.70"></a>
<FONT color="green">071</FONT>        // split state<a name="line.71"></a>
<FONT color="green">072</FONT>        private static final int STATE_UNSPLIT = 10;<a name="line.72"></a>
<FONT color="green">073</FONT>    <a name="line.73"></a>
<FONT color="green">074</FONT>        private static final int STATE_SPLIT = 11;<a name="line.74"></a>
<FONT color="green">075</FONT>    <a name="line.75"></a>
<FONT color="green">076</FONT>        /**<a name="line.76"></a>
<FONT color="green">077</FONT>         * The current running state of the StopWatch.<a name="line.77"></a>
<FONT color="green">078</FONT>         */<a name="line.78"></a>
<FONT color="green">079</FONT>        private int runningState = STATE_UNSTARTED;<a name="line.79"></a>
<FONT color="green">080</FONT>    <a name="line.80"></a>
<FONT color="green">081</FONT>        /**<a name="line.81"></a>
<FONT color="green">082</FONT>         * Whether the stopwatch has a split time recorded.<a name="line.82"></a>
<FONT color="green">083</FONT>         */<a name="line.83"></a>
<FONT color="green">084</FONT>        private int splitState = STATE_UNSPLIT;<a name="line.84"></a>
<FONT color="green">085</FONT>    <a name="line.85"></a>
<FONT color="green">086</FONT>        /**<a name="line.86"></a>
<FONT color="green">087</FONT>         * The start time.<a name="line.87"></a>
<FONT color="green">088</FONT>         */<a name="line.88"></a>
<FONT color="green">089</FONT>        private long startTime;<a name="line.89"></a>
<FONT color="green">090</FONT>    <a name="line.90"></a>
<FONT color="green">091</FONT>        /**<a name="line.91"></a>
<FONT color="green">092</FONT>         * The start time in Millis - nanoTime is only for elapsed time so we <a name="line.92"></a>
<FONT color="green">093</FONT>         * need to also store the currentTimeMillis to maintain the old <a name="line.93"></a>
<FONT color="green">094</FONT>         * getStartTime API.<a name="line.94"></a>
<FONT color="green">095</FONT>         */<a name="line.95"></a>
<FONT color="green">096</FONT>        private long startTimeMillis;<a name="line.96"></a>
<FONT color="green">097</FONT>    <a name="line.97"></a>
<FONT color="green">098</FONT>        /**<a name="line.98"></a>
<FONT color="green">099</FONT>         * The stop time.<a name="line.99"></a>
<FONT color="green">100</FONT>         */<a name="line.100"></a>
<FONT color="green">101</FONT>        private long stopTime;<a name="line.101"></a>
<FONT color="green">102</FONT>    <a name="line.102"></a>
<FONT color="green">103</FONT>        /**<a name="line.103"></a>
<FONT color="green">104</FONT>         * &lt;p&gt;<a name="line.104"></a>
<FONT color="green">105</FONT>         * Constructor.<a name="line.105"></a>
<FONT color="green">106</FONT>         * &lt;/p&gt;<a name="line.106"></a>
<FONT color="green">107</FONT>         */<a name="line.107"></a>
<FONT color="green">108</FONT>        public StopWatch() {<a name="line.108"></a>
<FONT color="green">109</FONT>            super();<a name="line.109"></a>
<FONT color="green">110</FONT>        }<a name="line.110"></a>
<FONT color="green">111</FONT>    <a name="line.111"></a>
<FONT color="green">112</FONT>        /**<a name="line.112"></a>
<FONT color="green">113</FONT>         * &lt;p&gt;<a name="line.113"></a>
<FONT color="green">114</FONT>         * Start the stopwatch.<a name="line.114"></a>
<FONT color="green">115</FONT>         * &lt;/p&gt;<a name="line.115"></a>
<FONT color="green">116</FONT>         * <a name="line.116"></a>
<FONT color="green">117</FONT>         * &lt;p&gt;<a name="line.117"></a>
<FONT color="green">118</FONT>         * This method starts a new timing session, clearing any previous values.<a name="line.118"></a>
<FONT color="green">119</FONT>         * &lt;/p&gt;<a name="line.119"></a>
<FONT color="green">120</FONT>         * <a name="line.120"></a>
<FONT color="green">121</FONT>         * @throws IllegalStateException<a name="line.121"></a>
<FONT color="green">122</FONT>         *             if the StopWatch is already running.<a name="line.122"></a>
<FONT color="green">123</FONT>         */<a name="line.123"></a>
<FONT color="green">124</FONT>        public void start() {<a name="line.124"></a>
<FONT color="green">125</FONT>            if (this.runningState == STATE_STOPPED) {<a name="line.125"></a>
<FONT color="green">126</FONT>                throw new IllegalStateException("Stopwatch must be reset before being restarted. ");<a name="line.126"></a>
<FONT color="green">127</FONT>            }<a name="line.127"></a>
<FONT color="green">128</FONT>            if (this.runningState != STATE_UNSTARTED) {<a name="line.128"></a>
<FONT color="green">129</FONT>                throw new IllegalStateException("Stopwatch already started. ");<a name="line.129"></a>
<FONT color="green">130</FONT>            }<a name="line.130"></a>
<FONT color="green">131</FONT>            this.startTime = System.nanoTime();<a name="line.131"></a>
<FONT color="green">132</FONT>            this.startTimeMillis = System.currentTimeMillis();<a name="line.132"></a>
<FONT color="green">133</FONT>            this.runningState = STATE_RUNNING;<a name="line.133"></a>
<FONT color="green">134</FONT>        }<a name="line.134"></a>
<FONT color="green">135</FONT>    <a name="line.135"></a>
<FONT color="green">136</FONT>        /**<a name="line.136"></a>
<FONT color="green">137</FONT>         * &lt;p&gt;<a name="line.137"></a>
<FONT color="green">138</FONT>         * Stop the stopwatch.<a name="line.138"></a>
<FONT color="green">139</FONT>         * &lt;/p&gt;<a name="line.139"></a>
<FONT color="green">140</FONT>         * <a name="line.140"></a>
<FONT color="green">141</FONT>         * &lt;p&gt;<a name="line.141"></a>
<FONT color="green">142</FONT>         * This method ends a new timing session, allowing the time to be retrieved.<a name="line.142"></a>
<FONT color="green">143</FONT>         * &lt;/p&gt;<a name="line.143"></a>
<FONT color="green">144</FONT>         * <a name="line.144"></a>
<FONT color="green">145</FONT>         * @throws IllegalStateException<a name="line.145"></a>
<FONT color="green">146</FONT>         *             if the StopWatch is not running.<a name="line.146"></a>
<FONT color="green">147</FONT>         */<a name="line.147"></a>
<FONT color="green">148</FONT>        public void stop() {<a name="line.148"></a>
<FONT color="green">149</FONT>            if (this.runningState != STATE_RUNNING &amp;&amp; this.runningState != STATE_SUSPENDED) {<a name="line.149"></a>
<FONT color="green">150</FONT>                throw new IllegalStateException("Stopwatch is not running. ");<a name="line.150"></a>
<FONT color="green">151</FONT>            }<a name="line.151"></a>
<FONT color="green">152</FONT>            if (this.runningState == STATE_RUNNING) {<a name="line.152"></a>
<FONT color="green">153</FONT>                this.stopTime = System.nanoTime();<a name="line.153"></a>
<FONT color="green">154</FONT>            }<a name="line.154"></a>
<FONT color="green">155</FONT>            this.runningState = STATE_STOPPED;<a name="line.155"></a>
<FONT color="green">156</FONT>        }<a name="line.156"></a>
<FONT color="green">157</FONT>    <a name="line.157"></a>
<FONT color="green">158</FONT>        /**<a name="line.158"></a>
<FONT color="green">159</FONT>         * &lt;p&gt;<a name="line.159"></a>
<FONT color="green">160</FONT>         * Resets the stopwatch. Stops it if need be.<a name="line.160"></a>
<FONT color="green">161</FONT>         * &lt;/p&gt;<a name="line.161"></a>
<FONT color="green">162</FONT>         * <a name="line.162"></a>
<FONT color="green">163</FONT>         * &lt;p&gt;<a name="line.163"></a>
<FONT color="green">164</FONT>         * This method clears the internal values to allow the object to be reused.<a name="line.164"></a>
<FONT color="green">165</FONT>         * &lt;/p&gt;<a name="line.165"></a>
<FONT color="green">166</FONT>         */<a name="line.166"></a>
<FONT color="green">167</FONT>        public void reset() {<a name="line.167"></a>
<FONT color="green">168</FONT>            this.runningState = STATE_UNSTARTED;<a name="line.168"></a>
<FONT color="green">169</FONT>            this.splitState = STATE_UNSPLIT;<a name="line.169"></a>
<FONT color="green">170</FONT>        }<a name="line.170"></a>
<FONT color="green">171</FONT>    <a name="line.171"></a>
<FONT color="green">172</FONT>        /**<a name="line.172"></a>
<FONT color="green">173</FONT>         * &lt;p&gt;<a name="line.173"></a>
<FONT color="green">174</FONT>         * Split the time.<a name="line.174"></a>
<FONT color="green">175</FONT>         * &lt;/p&gt;<a name="line.175"></a>
<FONT color="green">176</FONT>         * <a name="line.176"></a>
<FONT color="green">177</FONT>         * &lt;p&gt;<a name="line.177"></a>
<FONT color="green">178</FONT>         * This method sets the stop time of the watch to allow a time to be extracted. The start time is unaffected,<a name="line.178"></a>
<FONT color="green">179</FONT>         * enabling {@link #unsplit()} to continue the timing from the original start point.<a name="line.179"></a>
<FONT color="green">180</FONT>         * &lt;/p&gt;<a name="line.180"></a>
<FONT color="green">181</FONT>         * <a name="line.181"></a>
<FONT color="green">182</FONT>         * @throws IllegalStateException<a name="line.182"></a>
<FONT color="green">183</FONT>         *             if the StopWatch is not running.<a name="line.183"></a>
<FONT color="green">184</FONT>         */<a name="line.184"></a>
<FONT color="green">185</FONT>        public void split() {<a name="line.185"></a>
<FONT color="green">186</FONT>            if (this.runningState != STATE_RUNNING) {<a name="line.186"></a>
<FONT color="green">187</FONT>                throw new IllegalStateException("Stopwatch is not running. ");<a name="line.187"></a>
<FONT color="green">188</FONT>            }<a name="line.188"></a>
<FONT color="green">189</FONT>            this.stopTime = System.nanoTime();<a name="line.189"></a>
<FONT color="green">190</FONT>            this.splitState = STATE_SPLIT;<a name="line.190"></a>
<FONT color="green">191</FONT>        }<a name="line.191"></a>
<FONT color="green">192</FONT>    <a name="line.192"></a>
<FONT color="green">193</FONT>        /**<a name="line.193"></a>
<FONT color="green">194</FONT>         * &lt;p&gt;<a name="line.194"></a>
<FONT color="green">195</FONT>         * Remove a split.<a name="line.195"></a>
<FONT color="green">196</FONT>         * &lt;/p&gt;<a name="line.196"></a>
<FONT color="green">197</FONT>         * <a name="line.197"></a>
<FONT color="green">198</FONT>         * &lt;p&gt;<a name="line.198"></a>
<FONT color="green">199</FONT>         * This method clears the stop time. The start time is unaffected, enabling timing from the original start point to<a name="line.199"></a>
<FONT color="green">200</FONT>         * continue.<a name="line.200"></a>
<FONT color="green">201</FONT>         * &lt;/p&gt;<a name="line.201"></a>
<FONT color="green">202</FONT>         * <a name="line.202"></a>
<FONT color="green">203</FONT>         * @throws IllegalStateException<a name="line.203"></a>
<FONT color="green">204</FONT>         *             if the StopWatch has not been split.<a name="line.204"></a>
<FONT color="green">205</FONT>         */<a name="line.205"></a>
<FONT color="green">206</FONT>        public void unsplit() {<a name="line.206"></a>
<FONT color="green">207</FONT>            if (this.splitState != STATE_SPLIT) {<a name="line.207"></a>
<FONT color="green">208</FONT>                throw new IllegalStateException("Stopwatch has not been split. ");<a name="line.208"></a>
<FONT color="green">209</FONT>            }<a name="line.209"></a>
<FONT color="green">210</FONT>            this.splitState = STATE_UNSPLIT;<a name="line.210"></a>
<FONT color="green">211</FONT>        }<a name="line.211"></a>
<FONT color="green">212</FONT>    <a name="line.212"></a>
<FONT color="green">213</FONT>        /**<a name="line.213"></a>
<FONT color="green">214</FONT>         * &lt;p&gt;<a name="line.214"></a>
<FONT color="green">215</FONT>         * Suspend the stopwatch for later resumption.<a name="line.215"></a>
<FONT color="green">216</FONT>         * &lt;/p&gt;<a name="line.216"></a>
<FONT color="green">217</FONT>         * <a name="line.217"></a>
<FONT color="green">218</FONT>         * &lt;p&gt;<a name="line.218"></a>
<FONT color="green">219</FONT>         * This method suspends the watch until it is resumed. The watch will not include time between the suspend and<a name="line.219"></a>
<FONT color="green">220</FONT>         * resume calls in the total time.<a name="line.220"></a>
<FONT color="green">221</FONT>         * &lt;/p&gt;<a name="line.221"></a>
<FONT color="green">222</FONT>         * <a name="line.222"></a>
<FONT color="green">223</FONT>         * @throws IllegalStateException<a name="line.223"></a>
<FONT color="green">224</FONT>         *             if the StopWatch is not currently running.<a name="line.224"></a>
<FONT color="green">225</FONT>         */<a name="line.225"></a>
<FONT color="green">226</FONT>        public void suspend() {<a name="line.226"></a>
<FONT color="green">227</FONT>            if (this.runningState != STATE_RUNNING) {<a name="line.227"></a>
<FONT color="green">228</FONT>                throw new IllegalStateException("Stopwatch must be running to suspend. ");<a name="line.228"></a>
<FONT color="green">229</FONT>            }<a name="line.229"></a>
<FONT color="green">230</FONT>            this.stopTime = System.nanoTime();<a name="line.230"></a>
<FONT color="green">231</FONT>            this.runningState = STATE_SUSPENDED;<a name="line.231"></a>
<FONT color="green">232</FONT>        }<a name="line.232"></a>
<FONT color="green">233</FONT>    <a name="line.233"></a>
<FONT color="green">234</FONT>        /**<a name="line.234"></a>
<FONT color="green">235</FONT>         * &lt;p&gt;<a name="line.235"></a>
<FONT color="green">236</FONT>         * Resume the stopwatch after a suspend.<a name="line.236"></a>
<FONT color="green">237</FONT>         * &lt;/p&gt;<a name="line.237"></a>
<FONT color="green">238</FONT>         * <a name="line.238"></a>
<FONT color="green">239</FONT>         * &lt;p&gt;<a name="line.239"></a>
<FONT color="green">240</FONT>         * This method resumes the watch after it was suspended. The watch will not include time between the suspend and<a name="line.240"></a>
<FONT color="green">241</FONT>         * resume calls in the total time.<a name="line.241"></a>
<FONT color="green">242</FONT>         * &lt;/p&gt;<a name="line.242"></a>
<FONT color="green">243</FONT>         * <a name="line.243"></a>
<FONT color="green">244</FONT>         * @throws IllegalStateException<a name="line.244"></a>
<FONT color="green">245</FONT>         *             if the StopWatch has not been suspended.<a name="line.245"></a>
<FONT color="green">246</FONT>         */<a name="line.246"></a>
<FONT color="green">247</FONT>        public void resume() {<a name="line.247"></a>
<FONT color="green">248</FONT>            if (this.runningState != STATE_SUSPENDED) {<a name="line.248"></a>
<FONT color="green">249</FONT>                throw new IllegalStateException("Stopwatch must be suspended to resume. ");<a name="line.249"></a>
<FONT color="green">250</FONT>            }<a name="line.250"></a>
<FONT color="green">251</FONT>            this.startTime += System.nanoTime() - this.stopTime;<a name="line.251"></a>
<FONT color="green">252</FONT>            this.runningState = STATE_RUNNING;<a name="line.252"></a>
<FONT color="green">253</FONT>        }<a name="line.253"></a>
<FONT color="green">254</FONT>    <a name="line.254"></a>
<FONT color="green">255</FONT>        /**<a name="line.255"></a>
<FONT color="green">256</FONT>         * &lt;p&gt;<a name="line.256"></a>
<FONT color="green">257</FONT>         * Get the time on the stopwatch.<a name="line.257"></a>
<FONT color="green">258</FONT>         * &lt;/p&gt;<a name="line.258"></a>
<FONT color="green">259</FONT>         * <a name="line.259"></a>
<FONT color="green">260</FONT>         * &lt;p&gt;<a name="line.260"></a>
<FONT color="green">261</FONT>         * This is either the time between the start and the moment this method is called, or the amount of time between<a name="line.261"></a>
<FONT color="green">262</FONT>         * start and stop.<a name="line.262"></a>
<FONT color="green">263</FONT>         * &lt;/p&gt;<a name="line.263"></a>
<FONT color="green">264</FONT>         * <a name="line.264"></a>
<FONT color="green">265</FONT>         * @return the time in milliseconds<a name="line.265"></a>
<FONT color="green">266</FONT>         */<a name="line.266"></a>
<FONT color="green">267</FONT>        public long getTime() {<a name="line.267"></a>
<FONT color="green">268</FONT>            return getNanoTime() / NANO_2_MILLIS;<a name="line.268"></a>
<FONT color="green">269</FONT>        }<a name="line.269"></a>
<FONT color="green">270</FONT>        /**<a name="line.270"></a>
<FONT color="green">271</FONT>         * &lt;p&gt;<a name="line.271"></a>
<FONT color="green">272</FONT>         * Get the time on the stopwatch in nanoseconds.<a name="line.272"></a>
<FONT color="green">273</FONT>         * &lt;/p&gt;<a name="line.273"></a>
<FONT color="green">274</FONT>         * <a name="line.274"></a>
<FONT color="green">275</FONT>         * &lt;p&gt;<a name="line.275"></a>
<FONT color="green">276</FONT>         * This is either the time between the start and the moment this method is called, or the amount of time between<a name="line.276"></a>
<FONT color="green">277</FONT>         * start and stop.<a name="line.277"></a>
<FONT color="green">278</FONT>         * &lt;/p&gt;<a name="line.278"></a>
<FONT color="green">279</FONT>         * <a name="line.279"></a>
<FONT color="green">280</FONT>         * @return the time in nanoseconds<a name="line.280"></a>
<FONT color="green">281</FONT>         * @since 3.0<a name="line.281"></a>
<FONT color="green">282</FONT>         */<a name="line.282"></a>
<FONT color="green">283</FONT>        public long getNanoTime() {<a name="line.283"></a>
<FONT color="green">284</FONT>            if (this.runningState == STATE_STOPPED || this.runningState == STATE_SUSPENDED) {<a name="line.284"></a>
<FONT color="green">285</FONT>                return this.stopTime - this.startTime;<a name="line.285"></a>
<FONT color="green">286</FONT>            } else if (this.runningState == STATE_UNSTARTED) {<a name="line.286"></a>
<FONT color="green">287</FONT>                return 0;<a name="line.287"></a>
<FONT color="green">288</FONT>            } else if (this.runningState == STATE_RUNNING) {<a name="line.288"></a>
<FONT color="green">289</FONT>                return System.nanoTime() - this.startTime;<a name="line.289"></a>
<FONT color="green">290</FONT>            }<a name="line.290"></a>
<FONT color="green">291</FONT>            throw new RuntimeException("Illegal running state has occured. ");<a name="line.291"></a>
<FONT color="green">292</FONT>        }<a name="line.292"></a>
<FONT color="green">293</FONT>    <a name="line.293"></a>
<FONT color="green">294</FONT>        /**<a name="line.294"></a>
<FONT color="green">295</FONT>         * &lt;p&gt;<a name="line.295"></a>
<FONT color="green">296</FONT>         * Get the split time on the stopwatch.<a name="line.296"></a>
<FONT color="green">297</FONT>         * &lt;/p&gt;<a name="line.297"></a>
<FONT color="green">298</FONT>         * <a name="line.298"></a>
<FONT color="green">299</FONT>         * &lt;p&gt;<a name="line.299"></a>
<FONT color="green">300</FONT>         * This is the time between start and latest split.<a name="line.300"></a>
<FONT color="green">301</FONT>         * &lt;/p&gt;<a name="line.301"></a>
<FONT color="green">302</FONT>         * <a name="line.302"></a>
<FONT color="green">303</FONT>         * @return the split time in milliseconds<a name="line.303"></a>
<FONT color="green">304</FONT>         * <a name="line.304"></a>
<FONT color="green">305</FONT>         * @throws IllegalStateException<a name="line.305"></a>
<FONT color="green">306</FONT>         *             if the StopWatch has not yet been split.<a name="line.306"></a>
<FONT color="green">307</FONT>         * @since 2.1<a name="line.307"></a>
<FONT color="green">308</FONT>         */<a name="line.308"></a>
<FONT color="green">309</FONT>        public long getSplitTime() {<a name="line.309"></a>
<FONT color="green">310</FONT>            return getSplitNanoTime() / NANO_2_MILLIS;<a name="line.310"></a>
<FONT color="green">311</FONT>        }<a name="line.311"></a>
<FONT color="green">312</FONT>        /**<a name="line.312"></a>
<FONT color="green">313</FONT>         * &lt;p&gt;<a name="line.313"></a>
<FONT color="green">314</FONT>         * Get the split time on the stopwatch in nanoseconds.<a name="line.314"></a>
<FONT color="green">315</FONT>         * &lt;/p&gt;<a name="line.315"></a>
<FONT color="green">316</FONT>         * <a name="line.316"></a>
<FONT color="green">317</FONT>         * &lt;p&gt;<a name="line.317"></a>
<FONT color="green">318</FONT>         * This is the time between start and latest split.<a name="line.318"></a>
<FONT color="green">319</FONT>         * &lt;/p&gt;<a name="line.319"></a>
<FONT color="green">320</FONT>         * <a name="line.320"></a>
<FONT color="green">321</FONT>         * @return the split time in nanoseconds<a name="line.321"></a>
<FONT color="green">322</FONT>         * <a name="line.322"></a>
<FONT color="green">323</FONT>         * @throws IllegalStateException<a name="line.323"></a>
<FONT color="green">324</FONT>         *             if the StopWatch has not yet been split.<a name="line.324"></a>
<FONT color="green">325</FONT>         * @since 3.0<a name="line.325"></a>
<FONT color="green">326</FONT>         */<a name="line.326"></a>
<FONT color="green">327</FONT>        public long getSplitNanoTime() {<a name="line.327"></a>
<FONT color="green">328</FONT>            if (this.splitState != STATE_SPLIT) {<a name="line.328"></a>
<FONT color="green">329</FONT>                throw new IllegalStateException("Stopwatch must be split to get the split time. ");<a name="line.329"></a>
<FONT color="green">330</FONT>            }<a name="line.330"></a>
<FONT color="green">331</FONT>            return this.stopTime - this.startTime;<a name="line.331"></a>
<FONT color="green">332</FONT>        }<a name="line.332"></a>
<FONT color="green">333</FONT>    <a name="line.333"></a>
<FONT color="green">334</FONT>        /**<a name="line.334"></a>
<FONT color="green">335</FONT>         * Returns the time this stopwatch was started.<a name="line.335"></a>
<FONT color="green">336</FONT>         * <a name="line.336"></a>
<FONT color="green">337</FONT>         * @return the time this stopwatch was started<a name="line.337"></a>
<FONT color="green">338</FONT>         * @throws IllegalStateException<a name="line.338"></a>
<FONT color="green">339</FONT>         *             if this StopWatch has not been started<a name="line.339"></a>
<FONT color="green">340</FONT>         * @since 2.4<a name="line.340"></a>
<FONT color="green">341</FONT>         */<a name="line.341"></a>
<FONT color="green">342</FONT>        public long getStartTime() {<a name="line.342"></a>
<FONT color="green">343</FONT>            if (this.runningState == STATE_UNSTARTED) {<a name="line.343"></a>
<FONT color="green">344</FONT>                throw new IllegalStateException("Stopwatch has not been started");<a name="line.344"></a>
<FONT color="green">345</FONT>            }<a name="line.345"></a>
<FONT color="green">346</FONT>            // System.nanoTime is for elapsed time<a name="line.346"></a>
<FONT color="green">347</FONT>            return this.startTimeMillis;<a name="line.347"></a>
<FONT color="green">348</FONT>        }<a name="line.348"></a>
<FONT color="green">349</FONT>    <a name="line.349"></a>
<FONT color="green">350</FONT>        /**<a name="line.350"></a>
<FONT color="green">351</FONT>         * &lt;p&gt;<a name="line.351"></a>
<FONT color="green">352</FONT>         * Gets a summary of the time that the stopwatch recorded as a string.<a name="line.352"></a>
<FONT color="green">353</FONT>         * &lt;/p&gt;<a name="line.353"></a>
<FONT color="green">354</FONT>         * <a name="line.354"></a>
<FONT color="green">355</FONT>         * &lt;p&gt;<a name="line.355"></a>
<FONT color="green">356</FONT>         * The format used is ISO8601-like, &lt;i&gt;hours&lt;/i&gt;:&lt;i&gt;minutes&lt;/i&gt;:&lt;i&gt;seconds&lt;/i&gt;.&lt;i&gt;milliseconds&lt;/i&gt;.<a name="line.356"></a>
<FONT color="green">357</FONT>         * &lt;/p&gt;<a name="line.357"></a>
<FONT color="green">358</FONT>         * <a name="line.358"></a>
<FONT color="green">359</FONT>         * @return the time as a String<a name="line.359"></a>
<FONT color="green">360</FONT>         */<a name="line.360"></a>
<FONT color="green">361</FONT>        @Override<a name="line.361"></a>
<FONT color="green">362</FONT>        public String toString() {<a name="line.362"></a>
<FONT color="green">363</FONT>            return DurationFormatUtils.formatDurationHMS(getTime());<a name="line.363"></a>
<FONT color="green">364</FONT>        }<a name="line.364"></a>
<FONT color="green">365</FONT>    <a name="line.365"></a>
<FONT color="green">366</FONT>        /**<a name="line.366"></a>
<FONT color="green">367</FONT>         * &lt;p&gt;<a name="line.367"></a>
<FONT color="green">368</FONT>         * Gets a summary of the split time that the stopwatch recorded as a string.<a name="line.368"></a>
<FONT color="green">369</FONT>         * &lt;/p&gt;<a name="line.369"></a>
<FONT color="green">370</FONT>         * <a name="line.370"></a>
<FONT color="green">371</FONT>         * &lt;p&gt;<a name="line.371"></a>
<FONT color="green">372</FONT>         * The format used is ISO8601-like, &lt;i&gt;hours&lt;/i&gt;:&lt;i&gt;minutes&lt;/i&gt;:&lt;i&gt;seconds&lt;/i&gt;.&lt;i&gt;milliseconds&lt;/i&gt;.<a name="line.372"></a>
<FONT color="green">373</FONT>         * &lt;/p&gt;<a name="line.373"></a>
<FONT color="green">374</FONT>         * <a name="line.374"></a>
<FONT color="green">375</FONT>         * @return the split time as a String<a name="line.375"></a>
<FONT color="green">376</FONT>         * @since 2.1<a name="line.376"></a>
<FONT color="green">377</FONT>         */<a name="line.377"></a>
<FONT color="green">378</FONT>        public String toSplitString() {<a name="line.378"></a>
<FONT color="green">379</FONT>            return DurationFormatUtils.formatDurationHMS(getSplitTime());<a name="line.379"></a>
<FONT color="green">380</FONT>        }<a name="line.380"></a>
<FONT color="green">381</FONT>    <a name="line.381"></a>
<FONT color="green">382</FONT>    }<a name="line.382"></a>




























































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